I put the phone into download mode and connected it to Odin with the included Samsung USB 3.0 cable. I selected the root de la vega firmware using the AP button and hit Start to begin flashing. Almost immediately after the write starts it fails and on the phone it says:
"Secure check failed: cache"
I am not sure why this has happened. I feel like I followed the instructions to the letter. After looking at some different guides I am noticing that many have you put the phone into USB debugging mode which the guide I was following doesn't mention. Is this why it has failed. Is this strictly required?
I would like to get this device rooted, but now my number one priority is getting it back into a state where it will be more useful than the paperweight on my desk. I tried downloading Kies 3 which I read can restore the stock firmware on the phone. I was extremely annoyed when I realized that Kies 3 would not recognize my phone at all. It says that the device is not supported by Kies 3 and gives me a link to check support (which just brings me to the Kies download page which clearly states that my phone (Note 3) is supported. I even tried to download the original Kies software which will not even recognize the device enough to tell me it's not supported.
Can anyone point me to a way to restore my phone to factory settings? Can I download the stock firmware and flash it with Odin, will this work if I couldn't get the custom firmware to flash in Odin (possibly because of not setting USB debugging?).
EDIT: Note that, following the guide, I did not check which build number my phone is before running Odin, now I have no idea which it is and what stock firmware to download. Is there anyway to figure out which build my phone was on or which stock firmware I need to download?
EDIT: So it looks like my problem is similar to this problem posted on XDA. I followed the link in that thread to this guide to restore the stock firmware. However, it has three different downloads for different builds, I am not sure which I should download or if there is a way to figure it out. Will any of them work? Can I try them one at a time safely until one of them works. I don't want to mess things up any worse than I already have.. I downloaded the MI9 firmware from that page, but this is just a guess... Anyone have any idea?
Any help will be very much appreciated.